Question:

Maximum covalency of an element of atomic number $7$ is

Updated On: Jul 29, 2023
  • 4
  • 2
  • 5
  • 3
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The Correct Option is A

Solution and Explanation

The electronic configuration, of an element of atomic number 7, is $1s^{2}\,2s^{2}\,2p^{2}_{x},\,2p^{1}_{y}\,2p^{1}_{z}$. Thus the valency shell is second principal shell which has only four orbitals. Therefore the element can form maximum of four covalent bonds. Thus the covalency is 4.
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Concepts Used:

P-Block Elements

  • P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
  • P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.

P block elements consist of: